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Modern Mining ›› 2020, Vol. 36 ›› Issue (4): 130-132.

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Study on the Optimization of Atmospheric Desorption Conditions for Gold-bearing Activated Carbon

Yang Jie1,Sun Changgui2,Song Wei2,Ma Yuefei2,Li Pei1,Cao Zhao1   

  1. 1.Institute of Mining Engineering,Inner Mongolia University of Science and Technology;2.Sunit Jinxi Gold Mining Co.,Ltd.
  • Online:2020-04-25 Published:2020-05-20

Abstract: The effects of desorption solution composition,replacement rate and single cycle time on the desorption rate and desorption ratio of gold-bearing activated carbon (abbreviated to Au-bearing AC) were studied through laboratory desorption tests.The results showed that single cycle time was the significant factor for desorption of Au-bearing AC,the desorption rate and desorption ratio could improved dramatically by shorten the single cycle time;Addition of small amount of NaCN could increase the desorption ratio of Au-bearing AC at lower single cycle time,however,the effect of replacement rate was least significant for Au-bearing AC desorption.

Key words: Gold-bearing activated carbon, Desorption, Cycle time, Kinetics